タイトル |
柵越自由哺乳を利用した放牧和牛子牛の育成技術 |
担当機関 |
京都府碇高原総合牧場 |
研究期間 |
1998~1998 |
研究担当者 |
合田修三
|
発行年度 |
1998 |
要約 |
柵越自由哺乳による親子放牧では、子牛の放牧開始が50日齢以上だと、その後は良好な発育が期待できる。
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背景・ねらい |
中山間地域の過疎化による荒廃地の増加が危惧されている中で、畜産では土地の有効利用や景観保持等の観点から、放牧による肉用牛生産が見直されてきている。そこで、子牛の放牧育成に有効な柵越自由哺乳による親子放牧の試験を行い、農家での実証を図る。
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成果の内容・特徴 |
- 場内における120日間の親子放牧では、子牛の放牧開始日齢が50日齢以上だとその後の放牧期間中の発育は平均DGで0.80㎏以上と良好である(表1)。
- N牧場における親子放牧では、柵越哺乳の訓練期間を通常の10日から7日間に短縮しても、子牛の哺乳行動への影響は認められず、しかも放牧中の子牛の発育は良好である(表2)。
- 放牧時に親牛だけでなく、子牛にもピレスロイド系の薬剤によりダニ駆除を実施すると、小型ピロプラズマ病の発症は認められない(表3)。
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成果の活用面・留意点 |
- 親子放牧の開始は生後40日齢未満の子牛では、放牧期間中の発育が劣るため避ける。
- 放牧開始時の目安は、開始時で50㎏以上とする。
- 子牛による柵越自由哺乳の訓練には、7~10日間程度が必要である。
- 補助飼料の摂取量は、放牧地の草生に影響されるので注意する。
- 放牧中の小型ピロプラズマ病の予防は、親牛だけでなく子牛にも行う。
図1、図2
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図表1 |
![210551-1.gif](https://s3-agre-content.s3.ap-northeast-1.amazonaws.com/assets/images/seika_chart/210551-1.gif?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEDYaDmFwLW5vcnRoZWFzdC0xIkYwRAIgcvitnSLKan%2Bgl5CnG2XGnt6E8%2FX4OC49BmZ7WpKgIRkCIGtilEj197bvAqMc3MrUPBTcMOYIZAj9PcOH9kGok0duKpkECM%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEQAhoMNTMyMzMxMDcyMDQxIgwJyLmQs%2BZA65ZHVSsq7QOXO2k%2FDyaHqbVlLHrW3rawxxw7jnKH0o54p0%2BSaeE7w8rZZSfmc9eQtr9b048%2BnMbCrB%2Fwo%2BUczp6EIqP%2FLB1Ph4R2zqclG%2FykVDrX%2BDOLx5EfewI58l%2F1ETm0ur4o5DbjsAEyQWZpostoVdIMuU1S9WEO9EZwXxh089gszxkS7%2FgsA5pk9HlcQ2y60j9Y3a4RRORVOn1wrm8ml271I3yxe0flNfevDWJ6Ry6sJ4hYMiNzU6uRgseQHRIONyoLZeYjkLXqFuPbzUAaCM%2FbA3VTcm7L6II4KsJ%2BW7t1ZU0nFBqzT2Sk7z2N05kbvCntywjkxfH%2FknNrA%2B8mhggcY0CtEE0ITi8L8Hms7Pim%2F5vwE0Ua587Jgng8aTmX%2BC%2F03WYeG6kzhe9DN0q%2B%2Fk8awauKYF99evt0Nk4gsB0vCKyejXGWULNBQqIfYnZK3JJS8UPlioXPstsJrzQOxP2ggFWYvF9OVfgjr9wawaXoB5ucPhinyvmbjSUlXo7cnvxMLcMI4bjOO8T0zHZP%2BLeqEyEhQ95jF6PZYRvqj%2Bk5IeWO2%2BdTbtm6cX5UrtmyhY3CKw%2Ffysu1kTogoQOEvHs0HCVd1VPHjZot546MKOuhjMSGqeOFIxXoT1E4DzX%2F2rgtJof7NSbCDkozGccokEoIMO31ubMGOqcBQRAQc9aC%2FVplLQSsAVAZHPPuIdtUBjwcwlxWe1n4C81318svxguuzvaDpEBe5BbF7pVEDSe6h3UdQtPZZuYKCA8YVB5vC4VdQKNtpGZiE5ZXOG6IzasYrmEJAxBqYu4AjIqo%2B7F7aeErRqdz%2BAzsZXCyDaKIQeGVO9OTYgvpIv3%2Fm4Jgj%2Fy19Apdwm3nLSmSAk3sg5Zd0UcIbet3PuJJeKotLRZD5us%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAXX4LHRIU6PWNFYOO%2F20240616%2Fap-northeast-1%2Fs3%2Faws4_request&X-Amz-Date=20240616T054446Z&X-Amz-SignedHeaders=host&X-Amz-Expires=1800&X-Amz-Signature=a9f21c4eb3e327bc4b7753796504f8e2e0f29e1e1e22aca2c4c5912239e169ec) |
図表2 |
![210551-2.gif](https://s3-agre-content.s3.ap-northeast-1.amazonaws.com/assets/images/seika_chart/210551-2.gif?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEDYaDmFwLW5vcnRoZWFzdC0xIkYwRAIgcvitnSLKan%2Bgl5CnG2XGnt6E8%2FX4OC49BmZ7WpKgIRkCIGtilEj197bvAqMc3MrUPBTcMOYIZAj9PcOH9kGok0duKpkECM%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEQAhoMNTMyMzMxMDcyMDQxIgwJyLmQs%2BZA65ZHVSsq7QOXO2k%2FDyaHqbVlLHrW3rawxxw7jnKH0o54p0%2BSaeE7w8rZZSfmc9eQtr9b048%2BnMbCrB%2Fwo%2BUczp6EIqP%2FLB1Ph4R2zqclG%2FykVDrX%2BDOLx5EfewI58l%2F1ETm0ur4o5DbjsAEyQWZpostoVdIMuU1S9WEO9EZwXxh089gszxkS7%2FgsA5pk9HlcQ2y60j9Y3a4RRORVOn1wrm8ml271I3yxe0flNfevDWJ6Ry6sJ4hYMiNzU6uRgseQHRIONyoLZeYjkLXqFuPbzUAaCM%2FbA3VTcm7L6II4KsJ%2BW7t1ZU0nFBqzT2Sk7z2N05kbvCntywjkxfH%2FknNrA%2B8mhggcY0CtEE0ITi8L8Hms7Pim%2F5vwE0Ua587Jgng8aTmX%2BC%2F03WYeG6kzhe9DN0q%2B%2Fk8awauKYF99evt0Nk4gsB0vCKyejXGWULNBQqIfYnZK3JJS8UPlioXPstsJrzQOxP2ggFWYvF9OVfgjr9wawaXoB5ucPhinyvmbjSUlXo7cnvxMLcMI4bjOO8T0zHZP%2BLeqEyEhQ95jF6PZYRvqj%2Bk5IeWO2%2BdTbtm6cX5UrtmyhY3CKw%2Ffysu1kTogoQOEvHs0HCVd1VPHjZot546MKOuhjMSGqeOFIxXoT1E4DzX%2F2rgtJof7NSbCDkozGccokEoIMO31ubMGOqcBQRAQc9aC%2FVplLQSsAVAZHPPuIdtUBjwcwlxWe1n4C81318svxguuzvaDpEBe5BbF7pVEDSe6h3UdQtPZZuYKCA8YVB5vC4VdQKNtpGZiE5ZXOG6IzasYrmEJAxBqYu4AjIqo%2B7F7aeErRqdz%2BAzsZXCyDaKIQeGVO9OTYgvpIv3%2Fm4Jgj%2Fy19Apdwm3nLSmSAk3sg5Zd0UcIbet3PuJJeKotLRZD5us%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAXX4LHRIU6PWNFYOO%2F20240616%2Fap-northeast-1%2Fs3%2Faws4_request&X-Amz-Date=20240616T054446Z&X-Amz-SignedHeaders=host&X-Amz-Expires=1800&X-Amz-Signature=a164f08d8a6ddb67704c30c2033c0ecd9b24902522faaa6a1f1c0af011a9039f) |
図表3 |
![210551-3.gif](https://s3-agre-content.s3.ap-northeast-1.amazonaws.com/assets/images/seika_chart/210551-3.gif?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEDYaDmFwLW5vcnRoZWFzdC0xIkYwRAIgcvitnSLKan%2Bgl5CnG2XGnt6E8%2FX4OC49BmZ7WpKgIRkCIGtilEj197bvAqMc3MrUPBTcMOYIZAj9PcOH9kGok0duKpkECM%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEQAhoMNTMyMzMxMDcyMDQxIgwJyLmQs%2BZA65ZHVSsq7QOXO2k%2FDyaHqbVlLHrW3rawxxw7jnKH0o54p0%2BSaeE7w8rZZSfmc9eQtr9b048%2BnMbCrB%2Fwo%2BUczp6EIqP%2FLB1Ph4R2zqclG%2FykVDrX%2BDOLx5EfewI58l%2F1ETm0ur4o5DbjsAEyQWZpostoVdIMuU1S9WEO9EZwXxh089gszxkS7%2FgsA5pk9HlcQ2y60j9Y3a4RRORVOn1wrm8ml271I3yxe0flNfevDWJ6Ry6sJ4hYMiNzU6uRgseQHRIONyoLZeYjkLXqFuPbzUAaCM%2FbA3VTcm7L6II4KsJ%2BW7t1ZU0nFBqzT2Sk7z2N05kbvCntywjkxfH%2FknNrA%2B8mhggcY0CtEE0ITi8L8Hms7Pim%2F5vwE0Ua587Jgng8aTmX%2BC%2F03WYeG6kzhe9DN0q%2B%2Fk8awauKYF99evt0Nk4gsB0vCKyejXGWULNBQqIfYnZK3JJS8UPlioXPstsJrzQOxP2ggFWYvF9OVfgjr9wawaXoB5ucPhinyvmbjSUlXo7cnvxMLcMI4bjOO8T0zHZP%2BLeqEyEhQ95jF6PZYRvqj%2Bk5IeWO2%2BdTbtm6cX5UrtmyhY3CKw%2Ffysu1kTogoQOEvHs0HCVd1VPHjZot546MKOuhjMSGqeOFIxXoT1E4DzX%2F2rgtJof7NSbCDkozGccokEoIMO31ubMGOqcBQRAQc9aC%2FVplLQSsAVAZHPPuIdtUBjwcwlxWe1n4C81318svxguuzvaDpEBe5BbF7pVEDSe6h3UdQtPZZuYKCA8YVB5vC4VdQKNtpGZiE5ZXOG6IzasYrmEJAxBqYu4AjIqo%2B7F7aeErRqdz%2BAzsZXCyDaKIQeGVO9OTYgvpIv3%2Fm4Jgj%2Fy19Apdwm3nLSmSAk3sg5Zd0UcIbet3PuJJeKotLRZD5us%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAXX4LHRIU6PWNFYOO%2F20240616%2Fap-northeast-1%2Fs3%2Faws4_request&X-Amz-Date=20240616T054446Z&X-Amz-SignedHeaders=host&X-Amz-Expires=1800&X-Amz-Signature=fb06b9ccdfc4c91dc00b984ae0bb1fd358b5ccd58f1157d5318eb28240ca58d9) |
図表4 |
![210551-4.gif](https://s3-agre-content.s3.ap-northeast-1.amazonaws.com/assets/images/seika_chart/210551-4.gif?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEDYaDmFwLW5vcnRoZWFzdC0xIkYwRAIgcvitnSLKan%2Bgl5CnG2XGnt6E8%2FX4OC49BmZ7WpKgIRkCIGtilEj197bvAqMc3MrUPBTcMOYIZAj9PcOH9kGok0duKpkECM%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEQAhoMNTMyMzMxMDcyMDQxIgwJyLmQs%2BZA65ZHVSsq7QOXO2k%2FDyaHqbVlLHrW3rawxxw7jnKH0o54p0%2BSaeE7w8rZZSfmc9eQtr9b048%2BnMbCrB%2Fwo%2BUczp6EIqP%2FLB1Ph4R2zqclG%2FykVDrX%2BDOLx5EfewI58l%2F1ETm0ur4o5DbjsAEyQWZpostoVdIMuU1S9WEO9EZwXxh089gszxkS7%2FgsA5pk9HlcQ2y60j9Y3a4RRORVOn1wrm8ml271I3yxe0flNfevDWJ6Ry6sJ4hYMiNzU6uRgseQHRIONyoLZeYjkLXqFuPbzUAaCM%2FbA3VTcm7L6II4KsJ%2BW7t1ZU0nFBqzT2Sk7z2N05kbvCntywjkxfH%2FknNrA%2B8mhggcY0CtEE0ITi8L8Hms7Pim%2F5vwE0Ua587Jgng8aTmX%2BC%2F03WYeG6kzhe9DN0q%2B%2Fk8awauKYF99evt0Nk4gsB0vCKyejXGWULNBQqIfYnZK3JJS8UPlioXPstsJrzQOxP2ggFWYvF9OVfgjr9wawaXoB5ucPhinyvmbjSUlXo7cnvxMLcMI4bjOO8T0zHZP%2BLeqEyEhQ95jF6PZYRvqj%2Bk5IeWO2%2BdTbtm6cX5UrtmyhY3CKw%2Ffysu1kTogoQOEvHs0HCVd1VPHjZot546MKOuhjMSGqeOFIxXoT1E4DzX%2F2rgtJof7NSbCDkozGccokEoIMO31ubMGOqcBQRAQc9aC%2FVplLQSsAVAZHPPuIdtUBjwcwlxWe1n4C81318svxguuzvaDpEBe5BbF7pVEDSe6h3UdQtPZZuYKCA8YVB5vC4VdQKNtpGZiE5ZXOG6IzasYrmEJAxBqYu4AjIqo%2B7F7aeErRqdz%2BAzsZXCyDaKIQeGVO9OTYgvpIv3%2Fm4Jgj%2Fy19Apdwm3nLSmSAk3sg5Zd0UcIbet3PuJJeKotLRZD5us%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAXX4LHRIU6PWNFYOO%2F20240616%2Fap-northeast-1%2Fs3%2Faws4_request&X-Amz-Date=20240616T054446Z&X-Amz-SignedHeaders=host&X-Amz-Expires=1800&X-Amz-Signature=0624580b647f762190d55e5626a5157f3b744e6f865b2f7458edd5f112fa4168) |
図表5 |
![210551-5.gif](https://s3-agre-content.s3.ap-northeast-1.amazonaws.com/assets/images/seika_chart/210551-5.gif?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEDYaDmFwLW5vcnRoZWFzdC0xIkYwRAIgcvitnSLKan%2Bgl5CnG2XGnt6E8%2FX4OC49BmZ7WpKgIRkCIGtilEj197bvAqMc3MrUPBTcMOYIZAj9PcOH9kGok0duKpkECM%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEQAhoMNTMyMzMxMDcyMDQxIgwJyLmQs%2BZA65ZHVSsq7QOXO2k%2FDyaHqbVlLHrW3rawxxw7jnKH0o54p0%2BSaeE7w8rZZSfmc9eQtr9b048%2BnMbCrB%2Fwo%2BUczp6EIqP%2FLB1Ph4R2zqclG%2FykVDrX%2BDOLx5EfewI58l%2F1ETm0ur4o5DbjsAEyQWZpostoVdIMuU1S9WEO9EZwXxh089gszxkS7%2FgsA5pk9HlcQ2y60j9Y3a4RRORVOn1wrm8ml271I3yxe0flNfevDWJ6Ry6sJ4hYMiNzU6uRgseQHRIONyoLZeYjkLXqFuPbzUAaCM%2FbA3VTcm7L6II4KsJ%2BW7t1ZU0nFBqzT2Sk7z2N05kbvCntywjkxfH%2FknNrA%2B8mhggcY0CtEE0ITi8L8Hms7Pim%2F5vwE0Ua587Jgng8aTmX%2BC%2F03WYeG6kzhe9DN0q%2B%2Fk8awauKYF99evt0Nk4gsB0vCKyejXGWULNBQqIfYnZK3JJS8UPlioXPstsJrzQOxP2ggFWYvF9OVfgjr9wawaXoB5ucPhinyvmbjSUlXo7cnvxMLcMI4bjOO8T0zHZP%2BLeqEyEhQ95jF6PZYRvqj%2Bk5IeWO2%2BdTbtm6cX5UrtmyhY3CKw%2Ffysu1kTogoQOEvHs0HCVd1VPHjZot546MKOuhjMSGqeOFIxXoT1E4DzX%2F2rgtJof7NSbCDkozGccokEoIMO31ubMGOqcBQRAQc9aC%2FVplLQSsAVAZHPPuIdtUBjwcwlxWe1n4C81318svxguuzvaDpEBe5BbF7pVEDSe6h3UdQtPZZuYKCA8YVB5vC4VdQKNtpGZiE5ZXOG6IzasYrmEJAxBqYu4AjIqo%2B7F7aeErRqdz%2BAzsZXCyDaKIQeGVO9OTYgvpIv3%2Fm4Jgj%2Fy19Apdwm3nLSmSAk3sg5Zd0UcIbet3PuJJeKotLRZD5us%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAXX4LHRIU6PWNFYOO%2F20240616%2Fap-northeast-1%2Fs3%2Faws4_request&X-Amz-Date=20240616T054446Z&X-Amz-SignedHeaders=host&X-Amz-Expires=1800&X-Amz-Signature=d86c57e6730ac9cf967812294901228850104dbc93b73487eb1a5f37cadf7fbb) |
カテゴリ |
中山間地域
肉牛
薬剤
|